Know exactly which sites are blocked, which aren't, and why: monitored from points of presence across ISPs, mobile operators, and VPN providers worldwide.
Powering ISP blocking compliance for enterprise rights holders.
BlockWatch gives rights holders and legal teams a reliable, independent source of truth about how ISPs implement blocking restrictions. It ensures that blocking restrictions are not only in place, but remain effective, accurate, and consistent across all networks and jurisdictions. With clear evidence and continuous oversight, legal teams can streamline compliance processes, strengthen enforcement strategies, and maintain confidence in ISP cooperation.
Continuous, independent monitoring of ISP compliance with blocking orders.
Receive a definitive blocked or not-blocked verdict for every monitored site and network, backed by our proprietary detection ruleset.
Monitor blocking from points of presence across ISPs, mobile operators, and VPN providers in any market. Multi-region monitoring from a single dashboard.
Detect and classify blocking methods including DNS blocking, IP-level blocking, HTTP/S blocking, and transport-layer interference. Highlight missing or inconsistent blocks.
Generate formal, timestamped logs and reports suitable for legal and regulatory use. Support court filings, renewals, and enforcement proceedings.
Receive timely notifications when blocking compliance changes. Track compliance patterns and blocking effectiveness across markets and ISPs over time.
Get in touch to learn how BlockWatch can provide independent oversight of blocking effectiveness.
Identify and classify every type of ISP blocking method.
Highlights missing, partial, or inconsistent blocking.
A fully managed compliance monitoring service.
Get in touch to learn how BlockWatch can provide independent oversight of blocking effectiveness.
Built for rights holders, trade associations, and legal teams.
Monitor blocking compliance across multiple ISPs and jurisdictions.
Provide members with independent oversight of ISP blocking implementation.
Generate evidence-grade reports for court filings and enforcement proceedings.
Get in touch to learn how BlockWatch can provide independent oversight of blocking effectiveness.

BlockWatch uses a control connection to distinguish genuine ISP blocks from site outages, delivering accurate results with no false positives.
Each check produces a definitive blocked or not-blocked verdict, giving you a clear, evidence-based result for every monitored site and network.

Get in touch to learn how BlockWatch can provide independent oversight of blocking effectiveness.

BlockWatch monitors for a full range of blocking techniques: DNS configuration changes, IP filtering and null routing, and Deep Packet Inspection (DPI) on the HTTP Host header and SNI Server Name for HTTPS. No matter how an ISP implements a block, the platform can detect and classify it.
BlockWatch uses authoritative block checking to precisely identify the nature and source of each block. You know not only that a site is blocked, but which operator is blocking it and how.


BlockWatch checks multiple DNS servers, IP addresses, and protocols for each site, ensuring partial or inconsistent blocks are never missed.
When blocking is inconsistent across resolvers, IPs, or protocols, BlockWatch surfaces partial and combined statuses, giving you a complete view of how blocking is applied.

Get in touch to learn how BlockWatch can provide independent oversight of blocking effectiveness.